Best practices for securing SSH server

Earl E. Gay III earl at
Tue Jun 23 03:12:52 UTC 2009

On Mon, Jun 22, 2009 at 9:16 PM, Daniel Underwood <djuatdelta at>wrote:

> On a BSD box at work (at an extremely fast connection and static IP),
> I run an SSH server.  I am the only person who uses the server, but I
> use it from some locations that are behind a dynamic IP (so I can't
> set pf rules to filter by IP).  I will always, however, use the same
> laptop to connect to the server.  Due to the speed and location of the
> connection, it's a relatively high-risk target.
> What are some good practices for securing this SSH server.  Is using a
> stored key safer than a password in this instance? I have no
> experience with port-knocking, but I'd appreciate some tips or
> suggested beginning references... I welcome any and all advice.
> Note: I do require X11 forwarding (not sure whether that's relevant
> information)
> TIA,
> Daniel

Even though your IP is dynamic, I'd imagine you could still set pf rules to
only allow SSH from certain IP ranges, which is better than nothing.

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